How is Jesus as God reconciled with OT?
In Hebrews 1:8, Jesus is called God; how does this reconcile with the strict monotheism seen in the Old Testament?

I. Definition and Context

Hebrews 1:8 reads: “But about the Son He says: ‘Your throne, O God, endures forever and ever, and justice is the scepter of Your kingdom.’” This verse designates Jesus as “God,” raising the question of how it aligns with the Old Testament’s insistence on one God (e.g., Deuteronomy 6:4).

In biblical theology, this topic involves understanding God’s oneness and also the Son’s full divinity. The premise of strict monotheism in the Old Testament stands unaltered even when the New Testament reveals deeper dimensions of God’s nature. Below is a comprehensive exploration.


II. Old Testament Monotheism

A. Core Proclamation of God’s Oneness

Deuteronomy 6:4 declares, “Hear, O Israel: The LORD our God, the LORD is One.” Israel’s foundational confession, known as the Shema, underscores the existence of only one true God. The entire Old Testament consistently portrays Yahweh as the sovereign Creator, distinct from all other claimants to deity (Isaiah 45:5).

B. God’s Singular Uniqueness

Passages such as Isaiah 44:6 assert, “I am the first and I am the last; apart from Me there is no God,” reinforcing the unique, absolute status of the God of Israel. Archaeological investigations of ancient Near Eastern cultures reveal abundant competing deities in surrounding nations; this underscores the Old Testament’s distinctive emphasis on a single Deity.

Yet, multiple Old Testament passages include veiled hints of a unified plurality within this single divine Being (e.g., Genesis 1:26: “Let Us make man in Our image,”).


III. New Testament Revelation of the Son as God

A. Hebrews 1:8 in Context

Hebrews 1 emphasizes Jesus’ superiority over angels, showing that He is not merely an exalted creature. Verse 8, quoting Psalm 45:6, uniquely applies “Your throne, O God” to the Son. Since this text was originally addressed to the God of Israel, attributing it to Jesus indicates the author’s conviction that the Son fully shares in the identity and nature of God.

B. Additional New Testament Confirmations

John 1:1 states, “In the beginning was the Word, and the Word was with God, and the Word was God.”

John 20:28 includes Thomas’s confession to the risen Christ: “My Lord and my God!”

These passages fit cohesively with Hebrews 1:8, revealing that the earliest Christian writings regarded Jesus as co-equal with God, not a separate or lesser deity.


IV. Consistency of Monotheism and the Divine Son

A. Early Expressions of Plurality in Unity

Key Old Testament verses sometimes reference more than one divine figure while still affirming one God. For instance, Isaiah 9:6 prophetically calls the Messiah “Mighty God,” foreshadowing a unique relationship between the Messiah and Yahweh. The presence of the “Angel of the LORD” in places like Exodus 3:2–6 often appears interchangeable with God Himself. These examples, while not fully developed pictures of the Son, demonstrate an Old Testament backdrop in which God is one, yet not unipersonal in a strictly human sense.

B. Philosophical and Theological Coherence

A crucial concept is that the oneness of God is a unity of Being rather than a numerical oneness of person. Just as the Old Testament never divides God into two (or more) gods, so too the New Testament affirms one divine Being shared fully by the Father, Son, and Holy Spirit. The Church did not invent this doctrine late in its history; the seeds of understanding are found in the earliest Christian documents, grounded in Jesus’ own claims (John 8:58) and confirmed by the apostles.


V. Explanation Through the Lens of Scripture

A. Psalm 45 and Its Messianic Fulfillment

Hebrews 1:8 quotes Psalm 45:6–7. Psalm 45 originally addresses a king in David’s line, an “anointed one” (Hebrew: “mashiach”). The psalmwriter uses exalted language that the New Testament sees as ultimately fulfilled in Jesus—He is the final and perfect Anointed One, truly God yet having taken on humanity (cf. Philippians 2:6–8).

B. The Divine Throne as Proof of Deity

The address “Your throne, O God” sets Jesus on a divine throne that belongs only to the God who is “from everlasting to everlasting” (Psalm 90:2). If Jesus is enthroned eternally and rules with perfect justice, He must share in God’s divine nature. The Old Testament’s strict monotheism remains intact because Jesus is one with the Father (John 10:30).


VI. Historical and Manuscript Testimony

A. Textual Reliability

The statement in Hebrews 1:8 appears consistently in extant Greek manuscripts. Scholars such as Dr. James White and Dr. Dan Wallace highlight that the passage is well-attested in the textual tradition, with no variant readings that would undermine the phrase addressing the Son as God. Codex Sinaiticus and Codex Vaticanus, among other major manuscripts, confirm this reading.

B. Early Church Reception

Early Christian writers—such as Ignatius of Antioch, who wrote in the early second century—refer to Christ as God. These early attestations uphold the reliability of Hebrews 1:8’s original meaning, bridging from Old Testament monotheism to the revealed triune identity of the one God.


VII. Harmonizing the Oneness of God and the Divinity of Christ

A. God’s Nature and Personhood

The resolution lies in understanding that the Old Testament does not contradict the New Testament. The Old Testament emphasizes a single Being, while the New Testament unveils that this single Being is tri-personal. The Father, Son, and Holy Spirit share the same divine essence.

B. Mutual Indwelling (“Perichoresis”)

The concept often termed “perichoresis” describes how the three Persons of the Godhead dwell in perfect unity. This transcends common human categories of personhood. While unrelated to polytheism, it preserves pure monotheism: one divine essence in three co-equal Persons.


VIII. Conclusion

Hebrews 1:8 declares Jesus as God, perfectly consistent with the Old Testament’s message of one God. The Son is eternally one with the Father, revealed more fully in the New Testament. Monotheism remains intact because the divinity of Jesus is not an addition of another god but the deeper revelation of who God is in His triune nature.

From the earliest manuscripts to the overall thrust of Scripture, every indication supports the understanding that Hebrews 1:8 stands in full agreement with Old Testament monotheism. There is one Creator, revealed in the Father, the Son, and the Holy Spirit.

“Your throne, O God, endures forever and ever…” (Hebrews 1:8) thus proclaims the matchless glory and eternal authority of Jesus—consistent with the one true God first revealed in the Old Testament and more fully manifested in the New.

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